The LM3102/-Q1 SIMPLE SWTCHER® Synchronously Rectified Buck Converter features all required functions to implement a highly efficient and cost-effective buck regulator. The device can supply 2.5 A to loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a low component count, thus reducing complexity and minimizing board size.
●Different from most other COT regulators, the LM3102/-Q1 does not rely on output capacitor ESR for stability, and is designed to work exceptionally well with ceramic and other very low-ESR output capacitors. The device requires no loop compensation, results in a fast load transient response and simple circuit implementation. The operating frequency remains nearly constant with line variations due to the inverse relationship between the input voltage and the ON-time. The operating frequency can be externally programmed up to
●1 MHz. Protection features include VCC undervoltage lockout (UVLO), output overvoltage protection, thermal shutdown, and gate drive UVLO. The LM3102/-Q1 is available in the thermally enhanced HTSSOP-20 package, and LM3102 is also available in a DSBGA low-profile chip-scale package with reduced output current.
● LM3102-Q1 is an Automotive-Grade Product that
●is AEC-Q100 Grade 1 Qualified (40°C to +125°C
●Operating Junction Temperature)
● Low Component Count and Small Solution Size
● Stable With Ceramic and Other Low-ESR
●Capacitors
● No Loop Compensation Required
● High Efficiency at a Light Load by DCM Operation
● Prebias Start-Up
● Ultra-Fast Transient Response
● Programmable Soft-Start
● Programmable Switching Frequency up to 1 MHz
● Valley Current Limit
● Output Overvoltage Protection
● Precision Internal Reference for an Adjustable
●Output Voltage Down to 0.8 V
● Thermal Shutdown
● Key Specifications
● Input Voltage Range 4.5 V to 42 V
● 2.5-A Output Current
● 0.8 V, ±1.5% Reference
● Integrated Dual N-Channel Main and
●Synchronous MOSFETs
● Thermally Enhanced HTSSOP-20 Package
